python - scrapy 新手运行 scrapy crawl dmoz 时出现 : tutorial. 错误

Question

我已经设置了我的 PATH 变量，我认为我正在正确配置所有内容。但是当我在 startproject 文件夹中运行“scrapy crawl dmoz”时，我收到了这些错误消息:

c:\matt\testing\dmoz>scrapy crawl dmoz
2012-04-24 18:12:56-0400 [scrapy] INFO: Scrapy 0.14.0.2841 started (bot: dmoz)
2012-04-24 18:12:56-0400 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetConsole,         
CloseSpider, WebService, CoreStats, SpiderState
2012-04-24 18:12:56-0400 [scrapy] DEBUG: Enabled downloader middlewares:    
HttpAuthMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware,
faultHeadersMiddleware, RedirectMiddleware, CookiesMiddleware,   
HttpCompressionMiddleware, ChunkedTransferMiddleware, DownloaderStats
2012-04-24 18:12:56-0400 [scrapy] DEBUG: Enabled spider middlewares:   
HttpErrorMiddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware,  DepthMiddware
2012-04-24 18:12:56-0400 [scrapy] DEBUG: Enabled item pipelines:
Traceback (most recent call last):
File "c:\Python27\Scripts\scrapy", line 4, in <module>
execute()
File "c:\Python27\lib\site-packages\scrapy-0.14.0.2841-py2.7- 
win32.egg\scrapy\cmdline.py", line 132, in execute
_run_print_help(parser, _run_command, cmd, args, opts)
File "c:\Python27\lib\site-packages\scrapy-0.14.0.2841-py2.7-
win32.egg\scrapy\cmdline.py", line 97, in _run_print_help
func(*a, **kw)
File "c:\Python27\lib\site-packages\scrapy-0.14.0.2841-py2.7-
win32.egg\scrapy\cmdline.py", line 139, in _run_command
cmd.run(args, opts)
File "c:\Python27\lib\site-packages\scrapy-0.14.0.2841-py2.7-
win32.egg\scrapy\commands\crawl.py", line 43, in run
spider = self.crawler.spiders.create(spname, **opts.spargs)
File "c:\Python27\lib\site-packages\scrapy-0.14.0.2841-py2.7-  
win32.egg\scrapy\spidermanager.py", line 43, in create
raise KeyError("Spider not found: %s" % spider_name)
KeyError: 'Spider not found: dmoz'

有人知道会发生什么吗？

Answer 1

我也有这个问题。

这是因为 scrapy 教程要求您将创建的蜘蛛放在 /dmoz/spiders/ 中，但 scrapy 正在查找 tutorial/tutorial/spiders。

将 dmoz_spider.py 保存在 tutorial/tutorial/spiders 中，抓取应该可以工作。